1. G.C. Smith:Hydrogen in Metals, I.M. Bernstein and A.W. Thompson, eds., ASM, Metals Park, OH, 1974, p. 485.
2. R.J. Walter, J. D. Frandsen, and R.P. Jewett:Hydrogen Effects in Metals, I.M. Bernstein and A.W. Thompson, eds., TMS-AIME, Warrendale, PA, 1980, p. 819.
3. H.R. Gray:Hydrogen Embrittlement Testing, ASTM STP 543, ASTM, 1974, p. 133.
4. G. M. Pressouyre:Current Solutions to Hydrogen Problems in Steels, C.G. Interrante and G.M. Pressouyre, eds., ASM, Metals Park, OH, 1982, p. 18.
5. P.H. Studebaker: M. S. Thesis, Univ. of Ill. at Urbana-Champaign, 1981.